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Unanswered Questions

2,262 questions with no upvoted or accepted answers
9 votes
0 answers
6k views

How to produce a zoom animation of a video source with ffmpeg?

I'd like to create a zoom-in animation over numerous frames of a video clip. I've tried a couple of approaches without much luck. ffmpeg -i test-10s.mp4 -vf "zoompan=z='zoom+0.001'" zoompan-10s.mp4 ...
6 votes
0 answers
1k views

Merge Insta360 INSV files into 360 video with ffmpeg 360vr filter

Insta produces 2 video files, from back and front camera. They have .INSV extenstion, but they are acutally mp4 video files. That's how they look: And expected result is 360 panorama video: Can I ...
6 votes
1 answer
1k views

Making a Digital clock with a specific time for Sony Vegas Platinum 12

I'm using Vegas Platinum 12 and I want to create a time code in a video. But here is the catch. I want to start the clock at a specific time and have the count start at that time, i.e 05:21:34 or 21:...
5 votes
0 answers
2k views

Normalizing audio output loudness (LKFS/LUFS) in DaVinci Resolve 16

DaVinci Resolve 16 adds a great feature that allows applying "Normalize audio levels" on a clip using the ITU BS.1770 or EBU R128 standards, to a target level of -23 LKFS/LUFS, or similar. However, ...
5 votes
1 answer
2k views

Largest input image size when encoding a video?

I got a bunch of really large 16 bit videos, approaching 65535×65535 pixels in size. These are essentially high quality timelapse panoramas. I want to convert them to a 7680×4320 movie (8K UHD, 8 bit)....
5 votes
1 answer
2k views

Extract the frame (in image format) at exactly every minute (or second) from a video (by ffmpeg)

Motivation: I would like to seek the frame, then take high quality and exact time screenshots (images) from a video. The video is length is 00:48:43.71 and 23.98 fps (we can think it is 24 fps, isn't ...
5 votes
3 answers
2k views

Can I record directly to a computer with the HC-V250?

I'm considering purchase of the Panasonic HC-V250, but my primary use case is recording directly to a folder on my computer. (I do a lot of post-production editing, so I need all the files on my ...
4 votes
0 answers
175 views

Optimized Parameters of `FFMPEG` for Screen Recording

Windows has a great codec for screen recording called Windows Media Video Screen. It generates artifacts free videos which are highly compressed (small size). I was wondering, what would be the ...
4 votes
0 answers
1k views

How can I change the sample rate of an audio file, without re-encoding?

I have a lossy AAC audio file. I would like it to be slightly faster, and slightly higher pitched. I would like to avoid loosing any audio quality, such as by re-encoding the stream. I am well aware ...
4 votes
0 answers
9k views

moov atom not found

I downloaded this video using youtube-dl's HLS downloader. The video was being HLS streamed using AES-128. Even though I could view it perfectly fine when it was being streamed in the browser, VLC ...
4 votes
1 answer
249 views

Is there a NLE that supports Variable frame rate?

Now before you quickly jump in and say: Premier got an update... Use handbrake... What I'm asking none of the big players seem to support. Rendering a video that's frame rate changes through the ...
4 votes
1 answer
107 views

Camera Is Shaking Slowly After Changing Its Position

In Unity 3D I have a series of camera movements, but some don't successfully complete. Instead of the camera coming to rest, it ends up vibrating around the target location. I have the video of my ...
4 votes
2 answers
317 views

Free software for batch basic editing and down-sampling

I have a bunch of TV shows in HD that I want to down-sample to SD and at the same time strip out the titles and credits. Handbrake has great encoding and can handle batches, but I can't find a way to ...
4 votes
2 answers
20k views

Blending Mode Options Missing After Effects

I'm trying to change my blending mode on After Effects CC 2015, but I have no options on certain layers. Only 2 of my layers have options to change the blending mode. How do I change it so all of my ...
4 votes
0 answers
649 views

GStreamer mpegtsmux produces empty output file

I'm trying to construct a GStreamer pipeline to transcode MPEG2 video and MPEG1 audio in a MPEGTS container to H.264 and AAC and output to a filesink. The problem is: the output file is empty. If I ...

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